InfiniteTimeSeriesIndex.java
/**
* Copyright (c) 2017, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.timeseries;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.time.Instant;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Objects;
import java.util.stream.Stream;
/**
* @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>}
*/
public class InfiniteTimeSeriesIndex extends AbstractTimeSeriesIndex {
public static final InfiniteTimeSeriesIndex INSTANCE = new InfiniteTimeSeriesIndex();
public static final String TYPE = "infiniteIndex";
public static final Instant START_INSTANT = Instant.ofEpochMilli(0L);
public static final Instant END_INSTANT = Instant.ofEpochMilli(Long.MAX_VALUE);
@Override
public int getPointCount() {
return 2;
}
/**
* @deprecated Replaced by {@link #getInstantAt(int)}}
*/
@Deprecated(since = "6.7.0")
@Override
public long getTimeAt(int point) {
return getInstantAt(point).toEpochMilli();
}
@Override
public Instant getInstantAt(int point) {
if (point == 0) {
return START_INSTANT;
} else if (point == 1) {
return END_INSTANT;
} else {
throw new TimeSeriesException("Point " + point + " not found");
}
}
@Override
public String getType() {
return TYPE;
}
@Override
public void writeJson(JsonGenerator generator, ExportFormat timeFormat) {
Objects.requireNonNull(generator);
try {
generator.writeStartObject();
generator.writeEndObject();
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
public static InfiniteTimeSeriesIndex parseJson(JsonParser parser) {
Objects.requireNonNull(parser);
JsonToken token;
try {
while ((token = parser.nextToken()) != null) {
if (token == JsonToken.END_OBJECT) {
return InfiniteTimeSeriesIndex.INSTANCE;
}
}
throw new IllegalStateException("Should not happen");
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
@Override
public Iterator<Instant> iterator() {
return Arrays.asList(START_INSTANT, END_INSTANT).iterator();
}
@Override
public Stream<Instant> stream() {
return Stream.of(START_INSTANT, END_INSTANT);
}
@Override
public String toString() {
return "InfiniteTimeSeriesIndex()";
}
}